Cylinder sleeve removing tool



p 1951 J. v. MILLER CYLINDER SLEEVE REMOVING TOOL Filed June 23, 1949 R- Y 4 oz E 5 .W a m m w hm m m y 4 f 4 V .l I WWI N Patented Sept. 4, 1951 UNITED STATES PATENT OFFICE CYLINDER SLEEVE REMOVING TOOL John V. Miller, Fancy Prairie, Ill.

Application June 23, 1949, Serial No. 100,809

2 Claims.

. l The present invention relates to improvements in a cylinder sleeve removing tool and has for an object to provide an improved device of this kind in which the insertion and operation of. the tool can be performed from the upper side of the cylinder only. With the use of this improved tool, it is not necessary to apply pulling plates or nuts from the underside of the cylinder.

Another object of the present invention is to provide an improved cylinder sleeve removing tool in which the sleeve pulling bars are held in engagement with the sleeve by a rotatable lock plate. This lock plate can be quickly and easily moved to operative position from the upper side of the cylinder so that time is saved by eliminating the necessity of applying pulling disks or the like[ A further object of the present invention is to provide an improved device of this character in which means are mounted on the pulling bars for automatically arresting the insertion of the pullin bars into the cylinder when the sleeve engaging portions of the pulling bars have engaged the lower edge of the sleeve. This automatic arresting means also serves the purpose of locating the power operating device for the tool concentrically oi the cylinder sleeve to be removed.

The present invention aims to provide an improved cylinder sleeve removing tool which comprises relatively few parts so that the cost of manufacture and maintenance is relatively low.

The present invention also aims to provide an improved device of this type which on account of its extreme simplicity can be assembled for removing a cylinder sleeve in a matter of seconds instead of the extended length of time required for assembling prior art devices employed for a similar purpose.

In one of its broad aspects, the present invention contemplates providing an improved cylinder sleeve removing device comprising a pair of pulling bars connected at one end and having their opposite ends free and provided with portions for engaging the inner end of a cylinder sleeve and means for urging the free end portions of the pulling bars apart so that the sleeve engaging portions thereof will engage the lower edge of the cylinder sleeve.

With the foregoing and other objects in view, the invention will be hereinafter more fully described and more particularly pointed out in the appended claims. 1

In the drawings; in which the same parts are denoted by the same reference numerals throughout the several views;

Figure 1 is a front elevational view of the improved cylinder sleeveremoving tool constructed in" accordance withthe present invention il1uS- trating its application to a cylinder sleeve and with parts broken away and in section;

Figure 2 is a side elevational view of the improved device illustrated as applied to a cylinder sleeve and with parts in section;

Figure 3 is a cross sectional view taken on the line 3-3 of Figure 1 and looking in the direction of the arrows;

Figure 4 is a perspective view of the pivoted locking plate showing a portion of the pulling bar on which it is mounted; and

Figure 5 i a longitudinal vertical sectional view of the locking plate.

Referring more particularly to the drawings, It indicates a cylinder block in which is positioned a cylinder sleeve II. The outer end portion of the sleeve ll is provided with an annular exterior flange l2 which rests upon an interiorly extending annular flange IS on the cylinder block In so that the sleeve II is supported in the block with its inner edge l4 free. Since these cylinder sleeves become worn or scored. it is necessary from time to time to replace them with new ones. The following described improved cylinder sleeve removing tool will readily perform this operation.

A pair of pulling bars 15 and I6 have their outer end portions connected to a crosshead H by welding 18 or the like. The inner end portions of the pulling bars l5 and I6 are free and have mounted thereon lugs generally indicated at l9 and 2|], respectively. The lugs I9 and 20 can be formed integrally with the bars l5 and 16 or they can be secured thereto in any suitable manner. The lug [.9 comprises an outwardly facing shoulder 2| which extends beyond the outer face of the bar 15 and a pair of spaced apart arms 22 and 23 which extend inwardly of the bar 15 for receiving therebetween one end portion of a lock plate 24. The lock plate 24 is provided with an elongated opening 25. The lock plate 24 is hinged or pivotally connected to the arms 22 and 23 by a cotter pin 26 which extends through the opening 25 in the plate 24 and through aligned suitable openings in the arms 22 and 23. The lu 20 is provided with an outwardly facing shoulder 21 which extends beyond the outer face of the bar l6 and an abutment 28 which extends inwardly of the inner face of the bar [6.

Stop guide blocks 29 and 30 are secured as by welding or the like 31 to the outer faces of the pulling bars l5 and I5, respectively, intermediate their ends. The blocks 29 and 30 are attached to the bars [5 and I6, respectively, at such distances from the shoulders 2| and 21 that when, upon insertion of the bars [5 and I6 into the sleeve H, the blocks 29 and 30 contact the outer end of the sleeve H, the shoulders 2| and. 21

will be in position to engage the inner edge M of the sleeve I I. As will be noted from Figure 3, the outer faces of the blocks 29 and 3B are arcuate so as to conform to the inner surface of a cylindrical spacer 32 which they are adapted to engage when the spatter 32 is positioned upon the outer end of the cylinder block Iii.

generally indicated at 33 is positioned with its base 34 on the outer end of the spacer 32. The

ram 33 has a plunger 35, the outer-free end of which is received by a counterbore iio formed in the inner surface of the crosshead 17. A hydraulic operating pump 31 of conventional formis mounted upon the base 34 for controlling the operation of thejhydraulicram; A hydraulic release valve 38 of the conventional type is mounted upon the base 34;

In thevoperatio'n of the device, assuming that it is desired to remove the sleeve H from the cylinder block 10 13116 operator willswing the lock plate '24 to the position shown in dotted lines in Figure 1. The pulling bars 65 and i B will then be pressed towards each other sufficiently to per- .mit the insertion of their inner free ends into When the blocks 29 and 3!! corne the sleeve 5 i. into contact'with the outer edges of the cylinder lock I and the sleeve H, further insertion of the bars i and [6 will be automatically arrested.

'At this time, since the blocks 29 and 33 are spaced from the shoulders 21 and 21, respectively, a

distance substantially equal to the length of the sleeve H, theshoulders 2| and '27 of the bars i 5 and It will be in a position to engage the inner edge 14 of thesleeve I I.

The operator will then release the pressure upon the pulling bars l5 and i6 and the inner free ends 'ofthe bars will immediately expand to move the shoulders 26 and 21 into engagement with the inner edge. |4 of the sleeve i 5; plate 24 will be swung from the dotted line position to the full line positioni-llustrated in Figure 1, so that the free edge portion of the lock plate 2d will comeito rest upon the abutment of the lug 2!]. portions of the pulling bars i5 and iii in their spread apart operative position so that the shoulders 2i and 2'? of the lugs iBJand 23, respectively, will remain'in firm engagement with the inner edge I4 of the sleeve :H during the withdrawal of the sleeve;

The opening 25 is elongated longitudinally of the lock plate 24 so that shearing off of the cotter pin 231s prevented when putting pressure to the pulling bars l6 and [6. It Will be noted 7 that the insertion of the pullingbars'iii and i3 and the movement 'of the lock plate 23 into its locking position are accomplished from the outer or upper side of the cylinder block I0.

' The spacer 32 is now placed over the pulling bars and lfiiand moved inwardly until its inner edge contacts the outer surface of the cylinder block [0. At this time the inner surface of the spacer 32 will come into engagement with the outer arcuate faces of the blocks 29 and 3G and v portionjof the spacer 32 and the outer 'free end of the plunger 35 is received by the counterbore The lock The lock plate 'zid will hold the free end 4 i 36 of the crosshead H. The hydraulic ram is then operated by closing the release valve 38 and operating the pump 31. The plunger 35 will then exert outward pressure upon the inner face of the crosshead I! so that the pulling bars l5 and 16 will be moved outwardly of the cylinder block. This outward pulling force will be trans- A conventional type of hydraulic jack or ram 'mitted to the sleeve ll through the shoulders 2i and 21 of the lugs l9 and 20, respectively, so that the sleeve will be removed from the cylinder'block I'BJ 'The cylinder sleeve II will be retained by the pulling bars I5 and I6 until the entire tool femo'ved'from the outer end of the cylinder-block Ii]. A new cylinder sleeve may then be inserted in the oylinder block l0.

' f It is obvious that various changes and modificationsmay be made 'in the'details'of construe.

tion and designof the above'speeineeiiy ll'a sc'filil embodiment of thisinyention withddt departin from the s'pirit thereof, such changes, and 111661- crosshead andits inner end portion free, a" lug mountedon the inner free end portion of each pulling bar and having a shoulder for engaging the inner edge of the cylinder sleeve, one of said lugs having a pair of spaced arms, a lock plate,

a pivot lemeh'tmounted on the arms' of said one lug forpivotally supporting said locl; plate and an abutment mounted on the other lug to limit the movement of :said loci; plate in one direction and forsupporting said lock plate-in its operativ e position. g a i j a A Wies sle r m v n 9 comprising, a pair of pulling bar's connected at one end and t havin th sq pes n fl Prev wi portions for engaging the innerf'edge of a cylindei sleeve, stop mean'smounted on the pulling bars and spaced from the cylinder sleeve engag sing portions of the pulling bars a distance substantially equal to the length of the cylinder sleeve sothat when said stop means contact the vouter end of the cylinder sleeve the sleeve en- Igaging portions of the pulling bars will engage a pivot element mounted on the arms of said one lug for .api'votally-l supporting said lock plate,

and an. abutment mounted on the other lug to limit the movement of said lock plate in one directionand-for supporting said lock plate in its operative positinn. 1 .l l

"JOHN v. JMILLER.

. aerea-nnoes en-ED v r l The following references ere or-reeord in-the file of this patent:

I 7 Name Date 7 181,244 Campbell -s- Aug. 22, 1876 1597532 46 Ragsdale Aug. 10, 1926 ,v54,059 Stasei' l Apia-s, i930 2,085,529 I-Ieimbach et a1 June 29, 1937 $339,201 Wyscaver Nov. 4, 1947 

